8092e2c86d
# Objective `AspectRatio` is a newtype of `f32`, so it can implement basic traits; `Copy`, `Clone`, `Debug`, `PartialEq` and `PartialOrd`. ## Solution Derive basic traits for `AspectRatio`.
36 lines
864 B
Rust
36 lines
864 B
Rust
//! Provides a simple aspect ratio struct to help with calculations.
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use crate::Vec2;
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/// An `AspectRatio` is the ratio of width to height.
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#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
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pub struct AspectRatio(f32);
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impl AspectRatio {
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/// Create a new `AspectRatio` from a given `width` and `height`.
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#[inline]
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pub fn new(width: f32, height: f32) -> Self {
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Self(width / height)
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}
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/// Create a new `AspectRatio` from a given amount of `x` pixels and `y` pixels.
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#[inline]
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pub fn from_pixels(x: u32, y: u32) -> Self {
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Self::new(x as f32, y as f32)
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}
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}
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impl From<Vec2> for AspectRatio {
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#[inline]
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fn from(value: Vec2) -> Self {
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Self::new(value.x, value.y)
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}
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}
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impl From<AspectRatio> for f32 {
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#[inline]
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fn from(aspect_ratio: AspectRatio) -> Self {
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aspect_ratio.0
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}
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}
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